If you have hematuria every day during the period of double J tube, it is an abnormal situation and needs to be treated in the hospital: 1) it may be combined with infection and lead to bleeding. If the hematuria gradually decreases or disappears, it will not be treated. However, if persistent bleeding still exists after rest or drinking a lot of water, it is recommended to remove the double J tube from the patient’s body as soon as possible according to the patient’s condition. 3. It is also possible that the tube has caused repeated spasms in the ureter or caused urinary reflux, resulting in hematuria. Reflux. Flushing can also reduce the hematuria and prevent the formation of blood clots in the bladder to prevent infection in the bladder.